Dubai: A Saudi soldier was killed by gunmen late on Tuesday in the Eastern city of Qatif, in an incident the interior ministry said was carried out by "terrorist elements".
The security patrol came under fire upon approaching a suspicious vehicle, the statement carried by state news agency SPA, adding that the gunmen fled the area.
Eastern Province is home to much of Saudi Arabia's oil production.
There was no immediate claim of responsibility for the attack. Militants angry at what they say is repression of their community have attacked security forces in Eastern province in the past.
The IS militant group, which controls territory in Syria and Iraq, has also claimed attacks on Saudi security forces as well as deadly bombings and shootings.
In the past week, Saudi security forces killed two wanted men in separate incidents in Eastern province.